Home / 84,515,736.10-126,868,082.55-65,431,099.30

Finding the Fourth Proportional to 84,515,736.10, 126,868,082.55 and 65,431,099.30

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Solution

The fourth proportional to 84,515,736.10, 126,868,082.55 and 65,431,099.30 is: 98,219,793.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,515,736.10 : 126,868,082.55 = 65,431,099.30 : x
  2. Step 2: Convert to fraction form
    84,515,736.10/126,868,082.55 = 65,431,099.30/x
  3. Step 3: Cross multiply
    84,515,736.10x = 126,868,082.55 × 65,431,099.30
  4. Step 4: Simplify right side
    84,515,736.10x = 8,301,118,107,329,647
  5. Step 5: Solve for x
    x = 8,301,118,107,329,647/84,515,736.10
  6. Step 6: Final answer
    x = 98,219,793.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.